Evolution and Circulatory System CrossWord
This printable crossword puzzle on the topic of Ecology & Evolution has 14 clues. Answers range from 3 to 11 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Description
A blood vessel that returns blood back to the heart
The surname of a scientist who developed the theory of evolution
The blood vessel that brings oxygen and blood to the lungs
The organ that pumps blood around the body
The first name of a scientist who developed the theory of evolution
An organ that filters blood
Adaption over time
Adjusting to an environment to survive or live more comfortably
A branch of blood vessels that form a network
A group of bones covered in rock
The early Humans
An animal that is on the brink of extinction
A plants or animals' child
The animal that has the closest DNA to a human
